jees.md5 = function (_txt) {
	let data = _txt;
	// for test/debug
	function fflog(msg) {
		try {
			log(msg);
		} catch (e) { }
	}

	// convert number to (unsigned) 32 bit hex, zero filled string
	function to_zerofilled_hex(n) {
		var t1 = (n >>> 24).toString(16);
		var t2 = (n & 0x00FFFFFF).toString(16);
		return "00".substr(0, 2 - t1.length) + t1 +
			"000000".substr(0, 6 - t2.length) + t2;
	}

	// convert a 64 bit unsigned number to array of bytes. Little endian
	function int64_to_bytes(num) {
		var retval = [];
		for (var i = 0; i < 8; i++) {
			retval.push(num & 0xFF);
			num = num >>> 8;
		}
		return retval;
	}

	//  32 bit left-rotation
	function rol(num, places) {
		return ((num << places) & 0xFFFFFFFF) | (num >>> (32 - places));
	}

	// The 4 MD5 functions
	function fF(b, c, d) {
		return (b & c) | (~b & d);
	}

	function fG(b, c, d) {
		return (d & b) | (~d & c);
	}

	function fH(b, c, d) {
		return b ^ c ^ d;
	}

	function fI(b, c, d) {
		return c ^ (b | ~d);
	}

	// pick 4 bytes at specified offset. Little-endian is assumed
	function bytes_to_int32(arr, off) {
		return (arr[off + 3] << 24) | (arr[off + 2] << 16) | (arr[off + 1] << 8) | (arr[off]);
	}
	// convert the 4 32-bit buffers to a 128 bit hex string. (Little-endian is assumed)
	function int128le_to_hex(a, b, c, d) {
		var ra = "";
		var t = 0;
		var ta = 0;
		for (var i = 3; i >= 0; i--) {
			ta = arguments[i];
			t = (ta & 0xFF);
			ta = ta >>> 8;
			t = t << 8;
			t = t | (ta & 0xFF);
			ta = ta >>> 8;
			t = t << 8;
			t = t | (ta & 0xFF);
			ta = ta >>> 8;
			t = t << 8;
			t = t | ta;
			ra = ra + to_zerofilled_hex(t);
		}
		return ra;
	}

	// check input data type and perform conversions if needed

	if (!data instanceof Uint8Array) {
		fflog("input data type mismatch only support Uint8Array");
		return null;
	}
	var databytes = [];
	for (var i = 0; i < data.byteLength; i++) {
		databytes.push(data[i]);
	}

	// save original length
	var org_len = databytes.length;

	// first append the "1" + 7x "0"
	databytes.push(0x80);

	// determine required amount of padding
	var tail = databytes.length % 64;
	// no room for msg length?
	if (tail > 56) {
		// pad to next 512 bit block
		for (var i = 0; i < (64 - tail); i++) {
			databytes.push(0x0);
		}
		tail = databytes.length % 64;
	}
	for (i = 0; i < (56 - tail); i++) {
		databytes.push(0x0);
	}
	// message length in bits mod 512 should now be 448
	// append 64 bit, little-endian original msg length (in *bits*!)
	databytes = databytes.concat(int64_to_bytes(org_len * 8));

	// initialize 4x32 bit state
	var h0 = 0x67452301;
	var h1 = 0xEFCDAB89;
	var h2 = 0x98BADCFE;
	var h3 = 0x10325476;

	// temp buffers
	var a = 0,
		b = 0,
		c = 0,
		d = 0;


	function _add(n1, n2) {
		return 0x0FFFFFFFF & (n1 + n2)
	}

	// function update partial state for each run
	var updateRun = function (nf, sin32, dw32, b32) {
		var temp = d;
		d = c;
		c = b;
		//b = b + rol(a + (nf + (sin32 + dw32)), b32);
		b = _add(b,
			rol(
				_add(a,
					_add(nf, _add(sin32, dw32))
				), b32
			)
		);
		a = temp;
	};


	// Digest message
	for (i = 0; i < databytes.length / 64; i++) {
		// initialize run
		a = h0;
		b = h1;
		c = h2;
		d = h3;

		var ptr = i * 64;

		// do 64 runs
		updateRun(fF(b, c, d), 0xd76aa478, bytes_to_int32(databytes, ptr), 7);
		updateRun(fF(b, c, d), 0xe8c7b756, bytes_to_int32(databytes, ptr + 4), 12);
		updateRun(fF(b, c, d), 0x242070db, bytes_to_int32(databytes, ptr + 8), 17);
		updateRun(fF(b, c, d), 0xc1bdceee, bytes_to_int32(databytes, ptr + 12), 22);
		updateRun(fF(b, c, d), 0xf57c0faf, bytes_to_int32(databytes, ptr + 16), 7);
		updateRun(fF(b, c, d), 0x4787c62a, bytes_to_int32(databytes, ptr + 20), 12);
		updateRun(fF(b, c, d), 0xa8304613, bytes_to_int32(databytes, ptr + 24), 17);
		updateRun(fF(b, c, d), 0xfd469501, bytes_to_int32(databytes, ptr + 28), 22);
		updateRun(fF(b, c, d), 0x698098d8, bytes_to_int32(databytes, ptr + 32), 7);
		updateRun(fF(b, c, d), 0x8b44f7af, bytes_to_int32(databytes, ptr + 36), 12);
		updateRun(fF(b, c, d), 0xffff5bb1, bytes_to_int32(databytes, ptr + 40), 17);
		updateRun(fF(b, c, d), 0x895cd7be, bytes_to_int32(databytes, ptr + 44), 22);
		updateRun(fF(b, c, d), 0x6b901122, bytes_to_int32(databytes, ptr + 48), 7);
		updateRun(fF(b, c, d), 0xfd987193, bytes_to_int32(databytes, ptr + 52), 12);
		updateRun(fF(b, c, d), 0xa679438e, bytes_to_int32(databytes, ptr + 56), 17);
		updateRun(fF(b, c, d), 0x49b40821, bytes_to_int32(databytes, ptr + 60), 22);
		updateRun(fG(b, c, d), 0xf61e2562, bytes_to_int32(databytes, ptr + 4), 5);
		updateRun(fG(b, c, d), 0xc040b340, bytes_to_int32(databytes, ptr + 24), 9);
		updateRun(fG(b, c, d), 0x265e5a51, bytes_to_int32(databytes, ptr + 44), 14);
		updateRun(fG(b, c, d), 0xe9b6c7aa, bytes_to_int32(databytes, ptr), 20);
		updateRun(fG(b, c, d), 0xd62f105d, bytes_to_int32(databytes, ptr + 20), 5);
		updateRun(fG(b, c, d), 0x2441453, bytes_to_int32(databytes, ptr + 40), 9);
		updateRun(fG(b, c, d), 0xd8a1e681, bytes_to_int32(databytes, ptr + 60), 14);
		updateRun(fG(b, c, d), 0xe7d3fbc8, bytes_to_int32(databytes, ptr + 16), 20);
		updateRun(fG(b, c, d), 0x21e1cde6, bytes_to_int32(databytes, ptr + 36), 5);
		updateRun(fG(b, c, d), 0xc33707d6, bytes_to_int32(databytes, ptr + 56), 9);
		updateRun(fG(b, c, d), 0xf4d50d87, bytes_to_int32(databytes, ptr + 12), 14);
		updateRun(fG(b, c, d), 0x455a14ed, bytes_to_int32(databytes, ptr + 32), 20);
		updateRun(fG(b, c, d), 0xa9e3e905, bytes_to_int32(databytes, ptr + 52), 5);
		updateRun(fG(b, c, d), 0xfcefa3f8, bytes_to_int32(databytes, ptr + 8), 9);
		updateRun(fG(b, c, d), 0x676f02d9, bytes_to_int32(databytes, ptr + 28), 14);
		updateRun(fG(b, c, d), 0x8d2a4c8a, bytes_to_int32(databytes, ptr + 48), 20);
		updateRun(fH(b, c, d), 0xfffa3942, bytes_to_int32(databytes, ptr + 20), 4);
		updateRun(fH(b, c, d), 0x8771f681, bytes_to_int32(databytes, ptr + 32), 11);
		updateRun(fH(b, c, d), 0x6d9d6122, bytes_to_int32(databytes, ptr + 44), 16);
		updateRun(fH(b, c, d), 0xfde5380c, bytes_to_int32(databytes, ptr + 56), 23);
		updateRun(fH(b, c, d), 0xa4beea44, bytes_to_int32(databytes, ptr + 4), 4);
		updateRun(fH(b, c, d), 0x4bdecfa9, bytes_to_int32(databytes, ptr + 16), 11);
		updateRun(fH(b, c, d), 0xf6bb4b60, bytes_to_int32(databytes, ptr + 28), 16);
		updateRun(fH(b, c, d), 0xbebfbc70, bytes_to_int32(databytes, ptr + 40), 23);
		updateRun(fH(b, c, d), 0x289b7ec6, bytes_to_int32(databytes, ptr + 52), 4);
		updateRun(fH(b, c, d), 0xeaa127fa, bytes_to_int32(databytes, ptr), 11);
		updateRun(fH(b, c, d), 0xd4ef3085, bytes_to_int32(databytes, ptr + 12), 16);
		updateRun(fH(b, c, d), 0x4881d05, bytes_to_int32(databytes, ptr + 24), 23);
		updateRun(fH(b, c, d), 0xd9d4d039, bytes_to_int32(databytes, ptr + 36), 4);
		updateRun(fH(b, c, d), 0xe6db99e5, bytes_to_int32(databytes, ptr + 48), 11);
		updateRun(fH(b, c, d), 0x1fa27cf8, bytes_to_int32(databytes, ptr + 60), 16);
		updateRun(fH(b, c, d), 0xc4ac5665, bytes_to_int32(databytes, ptr + 8), 23);
		updateRun(fI(b, c, d), 0xf4292244, bytes_to_int32(databytes, ptr), 6);
		updateRun(fI(b, c, d), 0x432aff97, bytes_to_int32(databytes, ptr + 28), 10);
		updateRun(fI(b, c, d), 0xab9423a7, bytes_to_int32(databytes, ptr + 56), 15);
		updateRun(fI(b, c, d), 0xfc93a039, bytes_to_int32(databytes, ptr + 20), 21);
		updateRun(fI(b, c, d), 0x655b59c3, bytes_to_int32(databytes, ptr + 48), 6);
		updateRun(fI(b, c, d), 0x8f0ccc92, bytes_to_int32(databytes, ptr + 12), 10);
		updateRun(fI(b, c, d), 0xffeff47d, bytes_to_int32(databytes, ptr + 40), 15);
		updateRun(fI(b, c, d), 0x85845dd1, bytes_to_int32(databytes, ptr + 4), 21);
		updateRun(fI(b, c, d), 0x6fa87e4f, bytes_to_int32(databytes, ptr + 32), 6);
		updateRun(fI(b, c, d), 0xfe2ce6e0, bytes_to_int32(databytes, ptr + 60), 10);
		updateRun(fI(b, c, d), 0xa3014314, bytes_to_int32(databytes, ptr + 24), 15);
		updateRun(fI(b, c, d), 0x4e0811a1, bytes_to_int32(databytes, ptr + 52), 21);
		updateRun(fI(b, c, d), 0xf7537e82, bytes_to_int32(databytes, ptr + 16), 6);
		updateRun(fI(b, c, d), 0xbd3af235, bytes_to_int32(databytes, ptr + 44), 10);
		updateRun(fI(b, c, d), 0x2ad7d2bb, bytes_to_int32(databytes, ptr + 8), 15);
		updateRun(fI(b, c, d), 0xeb86d391, bytes_to_int32(databytes, ptr + 36), 21);

		// update buffers
		h0 = _add(h0, a);
		h1 = _add(h1, b);
		h2 = _add(h2, c);
		h3 = _add(h3, d);
	}
	// Done! Convert buffers to 128 bit (LE)
	return int128le_to_hex(h3, h2, h1, h0).toLowerCase();
};
window.md5 = function (_txt) {
	return jees.md5(_txt);
};